ip 80.91.64.50

80.91.64.0-80.91.64.255 CGNT-ES-BACKBONE Cogent backbone address block
<<80.91.64.49 vl4.mpd01.mad05.atlas.cogentco.com >>80.91.64.51 eu-res2.dns.cogentco.com
80.91.64.0/19 AS29003 proxy registered route by Cogent Cogent Communications Espana, S A
AS174 COGENT /PSI

80.91.64.0-80.91.64.255 CGNT-ES-BACKBONE Cogent backbone address block
80.91.64.50 SMTP:220 auth5.dns.cogentco.com ESMTP Sendmail 8.13.8+Sun/8.13.8; Thu, 27 Mar 2008 23:21:09 -0400 (EDT) DNS	auth5.dns.cogentco.com	PTR	A